/**
* Copyright (c) 1999-2014, Ecole des Mines de Nantes
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* modification, are permitted provided that the following conditions are met:
*
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* documentation and/or other materials provided with the distribution.
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* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
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package solver.constraints.ternary;
import org.testng.Assert;
import org.testng.annotations.Test;
import solver.Solver;
import solver.constraints.Constraint;
import solver.constraints.ICF;
import solver.constraints.IntConstraintFactory;
import solver.constraints.Propagator;
import solver.exception.ContradictionException;
import solver.variables.IntVar;
import solver.variables.VF;
import solver.variables.events.PropagatorEventType;
/**
* <br/>
*
* @author Charles Prud'homme
* @since 07/02/11
*/
public class TimesTest extends AbstractTernaryTest {
@Override
protected int validTuple(int vx, int vy, int vz) {
return vx * vy == vz ? 1 : 0;
}
@Override
protected Constraint make(IntVar[] vars, Solver solver) {
return IntConstraintFactory.times(vars[0], vars[1], vars[2]);
}
@Test(groups = "1s")
public void testJL() {
Solver s = new Solver();
IntVar a = VF.enumerated("a", 0, 3, s);
IntVar b = VF.enumerated("b", -3, 3, s);
IntVar z = VF.enumerated("z", 3, 4, s);
s.post(ICF.arithm(z, "=", 3));
Constraint c = ICF.times(a, b, z);
s.post(c);
try {
s.propagate();
Assert.assertFalse(a.contains(0));
for (Propagator p : c.getPropagators()) {
p.propagate(PropagatorEventType.FULL_PROPAGATION.getMask());
}
Assert.assertFalse(a.contains(0));
}catch (ContradictionException e){
Assert.assertFalse(true);
}
}
}